Device for guiding drawers for desks, bureaus, &amp;c.



No. 688,074. Patented Dec. 3, I901.

F.F. DUMKE.

[DEVICE FOR GUIDING DRAWEBS FOB DESKS, BUREAUS, 81.11.

(Application filed July 15, 1901.)

(No Model.)

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UNITED ST TES PATENT OFFICE.

FRANK F. DUMKE, OF MILWAUKEE, WISCONSIN, ASSIGNOR OF ONE-HALF TO CHARLESJOHN, OF MILWAUKEE, WISCONSIN.

DEVICE FOR GUIDING DRAWERS FOR DESKS, BUREAUS, 80c.

SPECIFIGATIGN forming part of Letters Patent No. 688,074, dated December3, 1901.

' Application filed July 15,1901. Serial No. 68,292. (No model.)

To all whom it may concern.-

Be it known that I, FRANK F. DUMKE, a citizen of the United States,residing at Milwaukee, county of Milwaukee, and State of Wisconsin, haveinvented new and useful Improvements in Devices for Guiding Drawers forDesks, Bureaus, &c., of which the following is a specification.

The object of my invention is to provide a device by which the drawersof desks, bu-

reaus, the, are guided in a straight line and prevented from binding orcatching against their bearings as they are moved forward and backwardin their inclosing ways.

v The construction of my invention is explained by reference to theaccompanying drawings, in which- Figure 1 represents a vertical sectionof a drawer and its inclosing bearing provided with my device forguidingthe drawer, drawn on line a; a", of Fig. 2. Fig. 2 represents ahorizontal section of my device, drawn on line y y of Fig. 1, showing abottom View of the guiding-levers.

2 5 Like parts are identified by the same reference-letters in bothviews.

A represents an ordinary sliding drawer, such as is used in desks,bureaus, &c.

B represents the upper and C the lower inclosing walls of the drawer.

D D are the inclosing side walls of the drawer, and E is the rearinclosing wall of the drawer.

F F are the sides, and G is the bottom, of 3 5 the drawer. The sides Fextend slightly below the bottom G, and they are adapted to rest andslide upon the upper surface of the lower inclosing wall C, as shown inFig. 1, thus leaving an open space H between the 0 bottom G of thedrawer and the wall 0.

The width of the drawer S is slightly less than the space between thevertical walls D, whereby narrower spaces I are left between the sidesof the drawer and its inclosing walls.

It will of course be understood that when the drawer is moved forwardand run in a straight line midway between the two vertical side walls Dthe sides of the drawer are prevented from coming in contact with orbinding against the inclosing walls D. To

accomplish this object and prevent the sides of the drawer fromimpinging against or coming in contact with the inclosing side walls D,I have provided a guiding mechanism which is connected with the bottomof the drawer and the lower wall of its inclosure, whereby the drawer isguided in a straight line centrally between said vertical walls D, andthereby prevented from impinging against them.

My guiding mechanism consists of the combination of two levers J J,which are pivotally connected together at their centers by the pivot K,connecting links L L and M M, which links are also pivotally connectedat one end with said levers J by the pivots N. The opposite ends of saidlinks L are connected together and with the stationary crosspiece 0 bythe pivot 1 plate R, and screws S. The opposite ends of the links M areconnected together-and with the front end of the drawer A by the pivotsT, plate U, and pin V, which pin is detachably connected with the plateU, so that if desired to remove the drawer, the head of the pill, whichis elongated, may be turned in line with the elongated slot W, wherebythe plate U may be disengaged from said pin V, thus permitting thedrawer to be drawn out without removing the guiding mechanism. It willbe obvious that by this arrangement the front end of the drawer A willbe prevented from being inclined toward the right and left by the leversJ J, which serve as braces between the stationary cross-piece O and thevertical front wall of said drawer, whereby said drawer will be guidedcentrally midway between the two vertical inclosing walls D, while saidlevers J are held in place and permitted to turn on their pivotalconnections by said links L and M and their connecting plates, links,and pivots. The cross-piece O is connected with the bottom of the wall Cby screws or nails 0..

While I have shown the guiding mechanism connected at its front end withthe front 5 end of the drawer and at its rear end with the inclosingwalls, it is obvious that the same may, if desired, be connected at itsfront end with the rear end of said drawer and at its opposite end withthe front end of said I00 inclosing walls, and the same objectaccomplished thereby.

For convenience of detaching the guiding mechanism from the drawer whendesirous to take the same from the inclosing walls the form shown is,however, preferred.

Having thus described my invention, what I claim as new, and desire toseem re by Letters Patent, is-

1. The combination with a sliding drawer and its inclosing walls; of apair of folding levers; and two pairs of folding links connectin g saidlevers respectively with said drawers and inclosure, one end of thelevers being arranged to bear against said drawer, whereby said draweris guided and prevented from moving laterally, as set forth.

2. The combination of a sliding drawer A;

inclosure O; cross-piece O; a pair of levers J ,J

central pivotal connection K; links L, L;

pivot P; connecting-plate R; links M; pivot T; plate U; and detachableconnecting-pin V, the inner ends of said levers J being adapted to bearagainst the stationary crosspiece 0, while the opposite ends ofsaid'levers are adapted to bear against said drawer, all substantiallyas specified.

In testimony whereof I affix my signature in the presence of twowitnesses.

FRANK F. DUMKE.

WVitnesses:

Ms B. ERWIN, C. L. RonsoH.

